Hydraulic Sinker Drill - Tool-Smith
Hydraulic Sinker Drill - Tool-Smith
Hydraulic Sinker Drill - Tool-Smith
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MOTOR BREAK-IN<br />
Motor break-in is required whenever major components<br />
of the motor have been replaced. Break-in the motor by<br />
operating the tool with the motor control valve fully<br />
open for approximately 15 minutes. Do not attempt to<br />
drill with the tool during the break-in period.<br />
ACCUMULATOR HOUSING,<br />
ACCUMULATOR, FLOW SLEEVE,<br />
PISTON, AND AUTOMATIC VALVE<br />
SERVICE<br />
1. Secure the tool in a bench vise, with the “IN” and<br />
“OUT” ports up, clamping on the flow sleeve tube<br />
between the side rods. Soft vise jaws are recommended.<br />
2. Remove the pigtail hose assemblies.<br />
Note: The tool is full of fluid and will drip from the<br />
ports when the hoses are removed.<br />
3. Remove the charge valve cap (12) (1-3/8 inch hex). .<br />
Loosen the 5/8 inch hex lock nut on the charging<br />
valve (14) 1-1/2 turns. Using a small punch, depress<br />
the stem in the charge valve to discharge the<br />
accumulator completely.<br />
4. Remove the charge valve.<br />
5. Remove the blower tube nut (43).<br />
6. Remove the four side rod nuts (66) (1 inch hex).<br />
7. Using a soft faced mallet, tap on the edges of the<br />
motor assembly to drive it from the flow sleeve tube<br />
(30).<br />
8. Remove the accumulator housing assembly (46)<br />
from the flow sleeve tube by tapping on alternate<br />
ends of the side rods (78) with a soft faced mallet.<br />
Be careful to prevent the washer (27), valve body<br />
(56), automatic valve (32), and push pins (57) from<br />
falling out when the accumulator housing assembly<br />
is separated from the flow sleeve tube.<br />
a. If the valve body remains in the accumulator<br />
housing assembly, lift the automatic valve and<br />
push pins out immediately after the accumulator<br />
housing assembly separates from the flow<br />
sleeve tube. Set the accumulator housing<br />
assembly aside.<br />
b. If the valve body remains in the flow sleeve<br />
tube when the accumulator housing is separated<br />
from the tube, proceed with step 9.<br />
9. Skip this step if the valve body remained with the<br />
accumulator housing assembly when separated from<br />
the flow sleeve tube. Grasp the valve body with one<br />
hand and slide the valve body off of the piston and<br />
away from the flow sleeve. Use your other hand to<br />
prevent the washer, automatic valve, and push pins<br />
from falling out. Remove the washer, automatic<br />
valve, and 2 push pins. Do not use a magnet to<br />
remove the push pins.<br />
10. Slide the piston (29) out of the flow sleeve (31).<br />
Slide it toward the accumulator housing end of the<br />
flow sleeve.<br />
11. Remove the flow sleeve tube from the vise and<br />
position it over a work bench so as to allow the push<br />
pins (58) to drop out. Hold a finger over the flow<br />
sleeve to prevent it from sliding out of the flow<br />
sleeve tube.<br />
12. Holding the flow sleeve tube in one hand, push on<br />
the flow sleeve to slide it out of the flow sleeve tube.<br />
The flow sleeve may be removed from the flow<br />
sleeve tube from either end of the tube. Use extreme<br />
care in handling the flow sleeve as it contains very<br />
sharp edges which can cut you. If the flow sleeve<br />
does not seem to be easily removeable from the flow<br />
sleeve tube, do not remove it unless necessary. To<br />
assist in the removal of a flow sleeve that has proven<br />
difficult to remove, use the following procedures.<br />
a. Place the Stanley special split ring tool (p/n<br />
04908) on top of the Stanley special flow<br />
sleeve removal tool (p/n 04910). Place the flow<br />
sleeve tube on top of the split rings. Using an<br />
arbor press and the Stanley special accumulator<br />
cylinder puller tool (p/n 05640) to protect<br />
the flow sleeve, push the flow sleeve out of the<br />
tube.<br />
13. Obtain the accumulator housing assembly. Insert<br />
Stanley special accumulator removal tool (p/n<br />
05639) or a 1/2-20 long threaded rod through the<br />
blower tube nut hole and thread it into the top of the<br />
accumulator. Tap on the special tool or rod with a<br />
mallet to drive the accumulator assembly (22, 23,<br />
24, 25, & 26) out of the accumulator housing. If the<br />
valve body is in the accumulator housing it will be<br />
driven out along with the accumulator assembly.<br />
Make sure the washer (27) between the valve body<br />
and accumulator is properly located in its<br />
counterbore before driving out the valve body and<br />
12